This inventor holds 3 USPTO granted patents. Top assignees: Nippon Telegraph and Telephone Public Corporation, Hitachi, Ltd.. Active years: 1981-1982.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
3 out of 522 
2 out of 42,726 
Years Active: 1981-1982
Title: Seiei Ohkoshi: Innovator in Digital Data Transmission
Introduction
Seiei Ohkoshi is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of digital data transmission, holding three patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of his latest patents is a method and apparatus for eliminating double bit errors in a code converting circuit. This invention is designed for digital data transmission systems that utilize a differential phase shift keying system. The circuit employs an exclusive OR circuit and a flip-flop circuit on both transmitting and receiving sides. It effectively converts two consecutive errors on adjacent bits into a single bit error, enhancing transmission efficiency without the need for highly error-correcting codes.
Another significant patent involves speech channel switching networks suitable for key telephone systems. This invention includes an electronic speech channel switching network that connects key telephone sets to central office lines. The network is structured with a matrix of incoming and outgoing lines, featuring controllable unidirectional switching elements at cross-points. This design allows for efficient management of communication channels.
Career Highlights
Seiei Ohkoshi has worked with prominent companies such as Nippon Telegraph and Telephone Public Corporation and Hitachi, Ltd. His experience in these organizations has contributed to his development as an inventor and innovator in the telecommunications sector.
Collaborations
Throughout his career, Ohkoshi has collaborated with notable colleagues, including Isao Ishikawa and Teiji Okamoto. These partnerships have likely fostered a creative environment that has led to the development of his impactful inventions.
Conclusion
Seiei Ohkoshi's contributions to digital data transmission and telecommunications are noteworthy. His innovative patents reflect his dedication to improving communication technologies. His work continues to influence the industry and inspire future innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile